Clementi, E.; Raimondi, D. L.; Reinhardt, W. P. (1967). “Atomic Screening Constants from SCF Functions. II. Atoms with 37 to 86 Electrons”. Journal of Chemical Physics47 (4): 1300–1307. Bibcode: 1967JChPh..47.1300C. doi:10.1063/1.1712084.
Clementi, E.; Raimondi, D. L.; Reinhardt, W. P. (1967). “Atomic Screening Constants from SCF Functions. II. Atoms with 37 to 86 Electrons”. Journal of Chemical Physics47 (4): 1300–1307. Bibcode: 1967JChPh..47.1300C. doi:10.1063/1.1712084.